udacity tensorflow

Tensorflow simple verification code recognition application, tensorflow Verification Code Simple Tensorflow verification code recognition application for your reference. The specific content is as follows: 1. Tensorflow Installation MethodI will not go into details here. 2. Training setAs well as testing and the follow

TensorFlow is used for simple linear regression and gradient descent examples. tensorflow gradient Linear regression is supervised learning. Therefore, the method and supervised learning should be the same. First, a training set is given and a linear function is learned based on the training set, then, test whether the function is trained (that is, whether the function is sufficient to fit the training set

Preface: TensorFlow There are many basic concepts to understand, the best way is to go to the official website followed by the tutorial step by step, there are some translated version, compared to see to help understand: tensorflow1.0 document translation text: One, the necessary process of building and executing the calculation diagram 1,graph (Figure calculation): see TF. Graph classUsing TensorFlow to t

TensorFlow and tensorflow Overview The newly uploaded mcnn contains complete data read/write examples. For details, refer. The official website provides three methods for Tensorflow to read data: Feeding: each step of TensorFlow execution allows Python code to supply data. Read data from a file: at the beginning o

software environment used in the study. For the last 4 years, open source software Torch7, the machine learning Library, has been our primary research platform, combining the perfect flexibility and very fast runtime execution to ensure rapid modeling. Our team is proud to have contributed to the open source project, which has evolved from the occasional bug fix to being the core maintainer of several key modules. With Google ' s recent open source release oftensorflow, we INITiated a project t

TensorFlow is a deep learning package developed by Google and is currently only supported on Linux and OSX. But this fall may have a Windows-enabled version of it, so for developers who use Windows, there's no need to wait for the fall or go to Linux and OSX TensorFlow. There are two ways to run on Windows, one is to install the virtual machine and install the Ubuntu system, install

TensorFlow requires Python 3.5/3.6 64bit version:Specific installation methods can be viewed: https://www.tensorflow.org/install/install_windows　　Enter Python at the command prompt to start and view the current version:　　To view the specific version information, enter:1 python-v　　Download the new 64bit version of Python for installation.Windows Python3.6.5 64bit:https://www.python.org/ftp/python/3.6.5/python-3.6.5-amd64.exeWindows

TensorFlow Neural Network Optimization Strategy Learning, tensorflow Network Optimization During the optimization of the neural network model, we will encounter many problems, such as how to set the learning rate. We can quickly approach the optimal solution in the early stage of training through exponential attenuation, after training, the system enters the optimal region stably. For the over-fitting probl

TensorFlow realize Classic Depth Learning Network (4): TensorFlow realize ResNet ResNet (Residual neural network)-He Keming residual, a team of Microsoft Paper Networks, has successfully trained 152-layer neural networks using residual unit to shine on ILSVRC 2015 , get the first place achievement, obtain 3.57% top-5 error rate, the effect is very outstanding. The structure of ResNet can accelerate the tra

(train_step,feed_dict={x_data:rand_x,y_data:rand_y}) Temp_loss=sess.run (loss,feed_dict={x_data:rand_x,y_data:rand_y})#Add a recordloss_rec.append (Temp_loss)#Print if(i+1)%25==0:Print('Step:%d a=%s b=%s'%(I,str (Sess.run (A)), str (Sess.run (b) )))Print('loss:%s'%str (temp_loss))#decimation Factor[slope]=Sess.run (A)Print(slope) [Intercept]=Sess.run (b) Best_fit=[] forIinchX_vals:best_fit.append (Slope*i+intercept)#x_vals shape (none,1)Plt.plot (X_vals,y_vals,'o', label='Data') Plt.plot (X_

TensorFlow creates a classifier and tensorflow implements classification. The examples in this article share the code used to create a classifier in TensorFlow for your reference. The details are as follows: Create a classifier for the iris dataset. Load the sample data set and implement a simple binary classifier to predict whether a flower is an iris. There are

TensorFlow variable management details, tensorflow variable details I. TensorFlow variable Management 1. TensorFLow also provides the tf. get_variable function to create or obtain variables. When tf. variable is used to create variables, its functions are basically equivalent to tf. Variable. The initialization method

Use tensorflow to build CNN and tensorflow to build cnn Convolutional Neural Networks Convolutional Neural Network (CNN) transfers the data of an image to CNN. The original coating is composed of RGB, And then CNN thickened the thickness and the length and width become smaller, each layer is stretched to form a classifier. There are several important concepts in CNN: Stride Padding Pooling Stride i

01 Simple Convolution network # "TensorFlow Combat" TensorFlow realize convolution neural network # WIN10 Tensorflow1.0.1 python3.5.3 # CUDA v8.0 cudnn-8.0-windows10-x64-v5.1 # Filen ame:sz05.01.py # Simple convolution network from tensorflow.examples.tutorials.mnist import input_data import tensorflow as tf mnist = Input_ Data.read_data_sets ("mnist_data/", o

In general, there are two functions for printing tensorflow variables:tf.trainable_variables () and Tf.all_variables ()The difference is:Tf.trainable_variables () refers to the variables that need to be trainedTf.all_variables () refers to all variables In general, we are more concerned with training variables that need to be trained:It is important to note that the entire graph is initialized when the variable name is output First, print the name of

Original address machine learning in the Cloud, with TensorFlowWednesday, MarchPosted by Slaven Bilac, software Engineer, Google analyticsmachine learning in the cloud with TensorFlowat Google, researchers collaborate closely and product teams, applying the latest advances in machine learning to Exi Sting products and Services-such asSpeech recognition in the Google app,Search in Google Photos and theSmart Reply feature in Inbox by Gmail-In order to do them more useful. A growing number of Googl

Mnist is an entry-level computer-vision dataset that contains 60,000 training data and 10,000 test data. Each sample is a variety of handwritten digital pictures below: It also contains the corresponding label for each picture, telling us this is a number. For example, the above four pictures are labeled 5,0,4,1. Mnist's official website: http://yann.lecun.com/exdb/mnist/ You can view the current maximum record for the project: http://rodrigob.github.io/are_we_there_yet/build/classification_dat

1. Overview As with the old version of TensorFlow, the model needs to be saved, and this preservation is cyclical. Because in many cases the gradient will swing around the local minimum, that is to say, in many cases, the last training model is not necessarily optimal. 2. Save the Model We can create a location where the checkpoint is saved when we build the model, and we can start by creating a folder with the following command. You can add paramet

=Tf.reduce_mean (Tf.abs (A)) L2_a_loss=Tf.reduce_mean (Tf.square (A)) E1_term=tf.multiply (elastic_p1,l1_a_loss) e2_term=tf.multiply (Elastic_p2,l2_a_loss)#here A is an irregular shape that corresponds to the array form of the 3,1 loss also expands the arrays formLoss=tf.expand_dims (Tf.add (Tf.add (Tf.reduce_mean (Tf.square (y_target-model_out)), e1_term), e2_term), 0)#Initialize Variablesinit=Tf.global_variables_initializer () sess.run (init)#Gradient Descentmy_opt=Tf.train.GradientDescentOpti

(): Image_size= 224Images=TF. Variable (Tf.random_normal ([Batch_size, Image_size, Image_size,3], Dtype=Tf.float32, StdDev=1e-1)) Keep_prob=Tf.placeholder (tf.float32) predictions, Softmax, FC8, p=inference_op (images, keep_prob) init=tf.global_variables_initializer () config=TF. Configproto () Config.gpu_options.allocator_type='BFC'Sess= TF. Session (config=config) sess.run (init) time_tensorflow_run (sess, predictions, {keep_prob:1.0},"Forward") O